import { describe, expect, it } from "vitest";
import type { PublicDealerView, PublicPlayerView } from "@/lib/minigames/blackjack";
import {
  actionLogText,
  popupEventsForTransition,
  type BlackjackPopupEvent,
} from "@/components/frontend/minigames/blackjack/blackjackPopups";
import {
  isTopSeatPosition,
  seatPosition,
} from "@/components/frontend/minigames/blackjack/seatPosition";
import type { BlackjackSoundSnapshot } from "@/components/frontend/minigames/blackjack/blackjackSoundEvents";

function hand(
  overrides: Partial<PublicPlayerView["hands"][number]> = {},
): PublicPlayerView["hands"][number] {
  return {
    cards: [],
    bet: 25,
    status: "active",
    doubled: false,
    fromSplit: false,
    splitAces: false,
    total: 21,
    outcome: null,
    netChange: null,
    ...overrides,
  };
}

function player(seatId: number, overrides: Partial<PublicPlayerView> = {}): PublicPlayerView {
  return {
    seatId,
    name: `Player ${seatId + 1}`,
    bankroll: 1000,
    hands: [],
    insuranceBet: 0,
    insuranceAnswered: false,
    hasBet: false,
    sittingOut: false,
    bankrupt: false,
    left: false,
    roundsPlayed: 0,
    roundsWon: 0,
    blackjacksHit: 0,
    ...overrides,
  };
}

function dealerView(overrides: Partial<PublicDealerView> = {}): PublicDealerView {
  return {
    cards: [],
    holeHidden: true,
    total: null,
    hasBlackjack: null,
    ...overrides,
  };
}

function view(
  overrides: Partial<BlackjackSoundSnapshot["you"]> = {},
): BlackjackSoundSnapshot["you"] {
  return {
    roundNumber: 1,
    phase: "betting",
    players: [player(0), player(1)],
    dealer: dealerView(),
    roundResult: null,
    viewerSeat: 0,
    yourTurn: false,
    yourHands: [],
    ...overrides,
  };
}

function snapshot(
  version: number,
  nextView: BlackjackSoundSnapshot["you"] = view(),
): BlackjackSoundSnapshot {
  return { version, you: nextView };
}

function bySeat(events: readonly BlackjackPopupEvent[], seatId: number): BlackjackPopupEvent | undefined {
  return events.find((event) => event.seatId === seatId);
}

describe("blackjack popup transition events", () => {
  it("labels a placed bet with its amount over the acting seat", () => {
    const events = popupEventsForTransition(
      snapshot(1, view()),
      snapshot(
        2,
        view({ players: [player(0, { hasBet: true, hands: [hand({ bet: 25 })] }), player(1)] }),
      ),
    );
    const bettor = bySeat(events, 0);
    expect(bettor?.tone).toBe("wager");
    expect(bettor?.text).toBe("Bet +25");
  });

  it("labels insurance, splits, and doubles over the acting seat", () => {
    const events = popupEventsForTransition(
      snapshot(
        1,
        view({
          players: [
            player(0, { hasBet: true, hands: [hand()] }),
            player(1, { hasBet: true, hands: [hand()] }),
          ],
        }),
      ),
      snapshot(
        2,
        view({
          players: [
            player(0, {
              hasBet: true,
              insuranceBet: 5,
              hands: [hand({ doubled: true, bet: 50 })],
            }),
            player(1, { hasBet: true, hands: [hand(), hand({ fromSplit: true })] }),
          ],
        }),
      ),
    );
    expect(events.some((event) => event.text === "Insurance +5")).toBe(true);
    expect(events.some((event) => event.text.startsWith("Double +"))).toBe(true);
    const splitter = events.find((event) => event.seatId === 1 && event.text === "Split");
    expect(splitter?.tone).toBe("action");
  });

  it("labels busts and naturals as hand-status changes", () => {
    const events = popupEventsForTransition(
      snapshot(
        1,
        view({
          phase: "player",
          players: [player(0, { hasBet: true, hands: [hand()] }), player(1, { hasBet: true, hands: [hand()] })],
        }),
      ),
      snapshot(
        2,
        view({
          phase: "player",
          players: [
            player(0, { hasBet: true, hands: [hand({ status: "bust" })] }),
            player(1, { hasBet: true, hands: [hand({ status: "blackjack" })] }),
          ],
        }),
      ),
    );
    expect(bySeat(events, 0)?.text).toBe("Bust");
    expect(bySeat(events, 0)?.tone).toBe("fold");
    expect(bySeat(events, 1)?.text).toBe("Blackjack!");
    expect(bySeat(events, 1)?.tone).toBe("win");
  });

  it("fires one aggregated win popup per seat when a round settles", () => {
    const settledView = view({
      phase: "round-complete",
      roundResult: {
        roundNumber: 1,
        dealerTotal: 22,
        dealerBusted: true,
        dealerHasBlackjack: false,
        hands: [
          {
            seatId: 0,
            handIndex: 0,
            total: 20,
            outcome: "win",
            payout: 50,
            netChange: 50,
          },
          {
            seatId: 1,
            handIndex: 0,
            total: 18,
            outcome: "win",
            payout: 25,
            netChange: 25,
          },
        ],
        insurance: [],
      },
    });
    const events = popupEventsForTransition(snapshot(1, view()), snapshot(2, settledView));
    expect(bySeat(events, 0)?.text).toBe("+50");
    expect(bySeat(events, 0)?.tone).toBe("win");
    expect(bySeat(events, 1)?.text).toBe("+25");
  });

  it("announces leavers and bankrupt players with leave tone", () => {
    const events = popupEventsForTransition(
      snapshot(1, view()),
      snapshot(
        2,
        view({
          players: [player(0, { left: true }), player(1, { bankrupt: true })],
        }),
      ),
    );
    expect(bySeat(events, 0)?.tone).toBe("leave");
    expect(bySeat(events, 0)?.text).toBe("Player 1 left the table");
    expect(bySeat(events, 1)?.text).toBe("Player 2 is out of chips");
  });

  it("returns no events for the same version", () => {
    const current = snapshot(3, view());
    expect(popupEventsForTransition(current, current)).toEqual([]);
  });
});

describe("actionLogText", () => {
  it("prefixes the acting player's name", () => {
    const players = [player(0, { name: "Harlan" })];
    expect(
      actionLogText({ key: "k", seatId: 0, text: "Bet +25", tone: "wager" }, players),
    ).toBe("Harlan: Bet +25");
    expect(
      actionLogText({ key: "k", seatId: 0, text: "+50", tone: "win" }, players),
    ).toBe("Harlan wins +50");
    expect(
      actionLogText({ key: "k", seatId: 0, text: "Gone", tone: "leave" }, players),
    ).toBe("Gone");
    expect(
      actionLogText({ key: "k", seatId: 4, text: "Bet +25", tone: "wager" }, players),
    ).toBe("Seat 5: Bet +25");
  });
});

describe("seatPosition", () => {
  it("spreads one through five opponents across the bottom two-thirds arc", () => {
    expect(seatPosition(0, 1)).toBe("blackjack-seat-arc-corner-right");
    expect(seatPosition(0, 2)).toBe("blackjack-seat-arc-corner-right");
    expect(seatPosition(1, 2)).toBe("blackjack-seat-arc-corner-left");
    expect(seatPosition(2, 5)).toBe("blackjack-seat-arc-low-right");
    expect(seatPosition(4, 5)).toBe("blackjack-seat-arc-corner-left");
  });

  it("classifies the dealer-adjacent corner seats for popup placement", () => {
    expect(isTopSeatPosition("blackjack-seat-arc-corner-right")).toBe(true);
    expect(isTopSeatPosition("blackjack-seat-arc-corner-left")).toBe(true);
    expect(isTopSeatPosition("blackjack-seat-arc-low-right")).toBe(false);
    expect(isTopSeatPosition("blackjack-seat-arc-mid-left")).toBe(false);
  });
});